Computer Hope

I have a word document with Appendices page numbers as A-1, A-2 etc. Here " A-"is a text and 1,2 are inserted page numbers.

In the table of content in appendices it just pick up 1,2,3 etc as page numbers. I want A-1, A-2 etc as page numbers in the table of content.

How do I do that?

Word version I am using is 2016.

Thanks for help!